a = [1, 3, 5, 7, 9]
b = [2, 4, 6, 8, 10]
c = [11, 13, 15, 17, 19]

if __name__ == '__main__':
    for cuda_var in [a, b, c]:
        print(cuda_var)
        pass
    pass

if __name__ == '__main__':
    print([[]] * 10)
    pass

if __name__ == '__main__':
    # print(len(-1))  # 这个地方是会报错的，int 类型是没有 len 属性的
    a, b = [1, 2]
    print(a, b)  # 1 2
    pass
